Computing-machine.



WIA." BRYANT. COMPUTING MACHINE. APP-mommy 311.21) 1111.25, 1910.

Patented June 13, 1911.

3 SHEETS SHI-IET 1.

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W. A. BRYANT.

COMPUTING MACHINE.

APPLICATION FILED .IAN25, 1910.

Patented June 13, 1911.

3 SHEETS-$311111 2.

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COMPUTING MACHINE.

APPLICATION FILED JAN. 25, 1910.

mm Junej13, 1911.

3 BHEETB-BHEXYT 3.

\ Q Lad- 1 1 51 H7 i lk I: .I mid-1] W! g ammm witnmu W 36 a Z at UNITED s'rarns PATENT canton WILLIAM A. BRYANT, OF WETUMPKA. ALABAMA, ASSIGNOB, BY DIBtEflT-AND MESNE ASSIGNMENTS, OF ONEHALF TO J OHN'L- ROUMILLAT AND Oltl'E-HALF TO 03313 I.

IBELGAU, BOTH OF TAMPA, FLORIDA.

COMEUT1NG-MACHINE.

Specification of Letters Intent, Patented, J 11 9 1 1911' Application filed January 25, 1 910. Serial No. 539,991.

To all whom it may concern:

Be it known that I, \VIL IAM A. BRYANT, a citizen of the United States. residing at \Vetumpka, in the county of Elmore and State of Alabama, have invented a new and useful Computing;l\lachine, of which the following is a specification.

This invention has reference to improvements in computing machines and is designed more particularly for designating the amount. of change due a' customer who tenders a bill in excess of the cost of a purchase.

The invention comprises essentially a series of tapes or flexible. bands upon which are produced longitudinal series ot figures with means for moving the bands or tapes and for permitting the display of certain of 111C figures so that there is exposed to the view of the customer the amount of the purchase, the amount tendered by the customer and'the cl'xangc due.

The invention will be best understood tronia consideration of the following detail description taken in connection with the accompanying drawings 't'orming a part of this specification, in which drawings,

Figure 1 is a front view of a structure constructed in :mcordance with the present; invention, Fig. 2 is a similar view of the interior of the casing of the machine, the said casing being shown in section. Fig. 3 is a section on the line .-\B of Fig. 1.. Figs. 4. and 5 are detail views of slides used on the interior of the machine. Fig. l) is a top plan view of the machine. I. ig. 7 is a displayed view of the bands or tapes showing the disposition of the numerals thereon,'and also showing in dotted lines the. relative positions of the openings therethrough.

' ieferring to the drawings there is shown a casing 1 shaped to house the various oper ating parts of the mechanism, the casing being formed to provide a t'ro'ntv compartment 2 and a rear compartment iihigherthan the front compartment whichlatler is rounded on top and preferably slanting rearwardly away from the front compartment. The rounded top of the .l'ront compartment. is provided with three parallel slots 1- 5-43 having numerals displayed on one side of each slot. The numerals displayed adjacent to the slots 4 and 5, reading toward the one sidethereof a obscri'eryare. as follows: 9, 0, 1, 2, 3, 4, 5, 6,

7 8.] The numerals displayed alongside the slot 6 read as follows: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

.Vithin the compartment'2iand extending laterallyacross the same is' an arbor 7 upon which are mounted three rollers 891O and each of these rollers is provided with a projecting pin 11 extending through the respective slot and exterior to the casing provided witha manipulating knob or handle 12.

\Vithin the casing 3 and at higher points than the arbor Tare other arbors -13 and 1-1, the arbor 13 carrying rollers 15-46-17 and the arbor. 11 carrying rollers 18 and 19 and 20. Each roller 15, 16 and 17 has fast on ulley 21 and each roller 89 and 10 has a similar pulley A flexible belt 23 connects each pulley 21 with a pu1ley22. The pulley 22 of the rollers 89 and 10 'may be simply in the form of a circumferent-ialgroove on one side of the CO1? res ending roller.

extending around the peripheries of the pulleys of the rollers 15 and 18 is an endless )and 24. Extending around the peripheries of the pulleys of the rollers 16 and 19 is an endless band 25, and extending around the peripheries of the pulleys of the rollers 17 and 20 is an endless band 26. These bands are secured to or so engage the respective pulleys t-hatthey always maintain the same relative position one to the other and to the respective rollers. The same is true of the belts '23.

lhe band 24 has upon it a main series of numbers which reading from the top downward are as follows: 8, 7, 6, 5, 4, 3, 2, 1, 0, 9, 1, 3, 4, 5, ti, 7, 8, 9, 0. On the same band are two other series of figures one to the lefthand side of the main series of figures and the other to the right-hand side. The leftnumber 7 of the main series and reads as Q p r 994,716

- single series of the band and reading from above downward as follows: 0, 9, 8, 7, 6, 5, 4,

The front portion of the casing inclosing the chamber 3 is formed with two sets of openings oifwindows, one set being desi merals 30,31 and 32. The openings 27 and 30 are in the same ertical plane and numbers on the band 24 are visible therethrough. The openings 28 and 31 are in the same vertical plane and numbers on the hand are visible therethrough. he openings 29 and. 32 are in the same vertical plane and unmhers on the hand 20 are visible therethrongh.

he openings 27, 28 and are all the same:

size and are each sufficient for the display of asinglenumeral on the respective hand. The opening 30 is of such height as to dis play a single numeral. on the band 24 but-of such width as to display all. three columns of numerals on thiahand 24, but provision is made for, the display of but one of the three columns at one time as will hereinafter appear. The opening 31 is ofsutlicient height to display two'ni'mfiera s one. above the other of the band 25, but as will hereinafter appear provision is made for the display of but one of these numerals at a time. The opening 32 is of such height and width as to display but one numeral of the band 20 at one time. The openings 27, 28 and 29 are all in the same horizontal plane and the openings 30, 31. and 32 are in the same horizontalplane but. displaced below the opexr.

ings 27, 2S and 20 to exhilgiit the tenth numeral of any one of the bands below the one ijlisplayed in the upper opening 27, 1 8 or 29 as the case may be. The lower part (if the opening 31 will display the eleventh nu.--

meral below the one displayed in the opening 28. At'one side of the front of the casing inclosing the compartment 3, that side being to the left of the band 24 as viewed in Fig. 1, there is formed through the casing an elongated slot. 33 having locking notches 34 and .35 near the respective ends.

On lheinner face of the casihg back of the opening 30 is a slide 30 shown separately in I Fig. 4, and this slide is provided with three openings 37, 3S and Ill) in the vertical planes of the three columns ol figures displayed on the strip 24, but the openings are in differenthorizontal planes. The opening 37 corresponds to the long column of figures on the strip 24. the opening 38 corresponds to the left-hand short. column of figures on the same strip and the opening 39 corresponds to the rightdrand column of figures on the same strip. lever 40 hinged to one side of the casing and projecting through the slot. 33 is connected by a link 41 t0 the slide 2 30 so that when this lever 40 is moved up or down the slide 230 will participate in this be forced. out therefrom into the main portion of the slot so that this slide may be moved up or down and locked in either extreme position but will be held in intermediate positions by frictional engagement. Ar ranged to slide along the back face of the \front of the casing adjacent to the opening 31 is another sliding member et2tnormally held in the depressed position by a spring 43 and movable against the spring by a pin 4.4:

on the roller 1? engaging a projection 45 on the slide. Thisslide is provided with a laterally projecting blind 46 movable along the opening 31 and of sufiicient height to close half the opening and thus hide one or the other of the numerals which" would otherwise be visible through the opening 31.

Let it be assumed that the machine is designed to show the change due from the proprietor on a purchase amounting to less than ten' dollars, then at differentpoints along the slot 33 the amounts $1.00, $2.00, $5.00, $10.00 will be displayed, these-being ordinary bill denominations. By Way of illustration let it be supposed that the purchase amounts to $7.79 and that a $10.00 bill is tendered in payment thereof. The lever L0is moved downward until the slide 30 has participated in the down 'ard movement so that the opening 37 in the slide 36 is centralized in the openingl-ZO thus displaying the central column of figures of the band 24: and hiding the other columns. The rollers 8, 9 and 10 are moved by the knohs lil of the pins ll. until these pins or pointers carried by the pins are opposite below the numbers displayed through the upper setof openings will be seenlhrough the lower set of openings, and these numbers will be 2-2--1. numbers will be found to represent the change due the'customer from a $10.00 bill tendered for a purchase amounting to $7.70. Suppose for instance that the amount of This last named set off the purchase came to $1.30 and that a $2.00

hill was tendered in payment of this amount. The lever 40 ismoved until opposite the designation $2.00 by the side of the slotl3. This will expose the left-hand column-0T figures on the hand 94 through the opening 38 The band 20 is moved until the numeral 0 is displayed through the opening 20 when the tenth number below the opening 29 will be found to be the numeral 4 seen through the opening 32. The band 25 is moved until the numeral 3 appears through the opening 28 and the tenth-number therebelow. namely the numeral 6 will be found displayed through the opening 31. The numeral 1 of the band 24 is caused to be displayed through the opening 27 and were it not for the slide 36 the numeral 8 would be displayed through the opening'30 but because of the slide 36 this numeral is hidden but, the left-hand column is displayed and this will be found to be the numeral 0 so the change shown by the machine is 64 which is the proper amount of change due out of the $2.00 tendere Suppose the purchase amounted to $2.40 and that a five dollar bill is tendered in payment, then the lever 40 is moved until opposite the designation $5.00 which will bring the opening 30 of the slide 36 into coincidence with the opening 30 blanking the central and left-hand columns and displaying the right-hand column of the band 24. Since there are no cents, the roller 10 is allowed to remain at zero, or if not at such designation, is moved to the zero point thus causing the display of zero or naught at both the openings 29 and 32. This will cause the engagement of the pin 44' of the roller 10 with the slide 42 and thus cause the display of the lower portion of the opening 31, thus when the index of the roller 9 is moved to 4, such numeral 4 will be displayed through the opening 28 butthe tenth numeral below the same on the band 25 is 5 and consequently it is necessary to display the next lower number, namely 6, to compensate for the zero designation of the column representing cents. By the proper movement of the roller 8 there is caused to be displayed through the opening 27 the numeral 2 and the samenumeral will be found displayed through the opening 39, visible through the right-hand end of the opening 30.

These several examples will be sufiicicnt to show the operation of the machine.

\Vhat is claimed is -I. In a machine of the character described, independently movable members having columns of figures in predetermined order thereon representing units, means for moving said members imlepemlent'ly to chosen extents, a casing housing the members, aml having openings for the display of related portions of the columns of figures, and means for partly closing certain openings so that the exposed figures shall indicate the amount-purchascd and the amount ofchange due.

2. In a machine of the character described, a movable member having a column of figures in predetermined order thereon rep-- resenting cents. another movable member having a column of figures thereon in pre-le-' termined order representing dimes, and a third movable member having a column of figures thereon representing dollars and other flanking columns of figures also representing dollars, means for causing the movement of said members to a chosen extent, a.

casing housing the members and having openings fordisplaying related portions of he units and dimes columns of figures and a slide adjustable over this third opening and itself having openings .for closing two and exposing the third column of dollar figures to indicate the amount purchased and the amount of change due.

3. Ina machine ofthecharacter described, a movable mcn'iber containing a column of figures reading in reverse order from the central portion toward the ends and reprcsent'ing cents. another movable member containing a column of figures also reading from the central portion toward the ends and representing (limes or tenths of dollars. another movable member having a colunni of figures reading like the second column of figures and provided witluflanking columns of figures. a casing housing the figure-containing members and provided with spaced openings through which related portions of the columns of figures are visible, and adjustable means for rendering different related portions of the second and third columns of figures visible.

t. In a machine of the character described,

a movable band containing a column of fig- 10C ures containing the numerals one to nine in such order that the eleventh numeral trom' anv numeral shall represent the difference between the first named numeral and. ten,

another movable band containing a like ar- 105 rangement of numeralso'and a third band" containing a like arrangement. of. numerals and having flanking columns of numerals, acasing inelosing the figure contaimng memhers. means for moving the bands independ- I10 ciitlv. and means tor displaying related portious of the columns of figures to indicate the amount purchased and the amount of change due.

In testimony that I claim the foregoing as 115 my own. I have hereto afiixcd my signature in the presence of two witnesses.

' W[LLTA1\ BRYANT,

\Vitnesses F. Lori) Tara, J. F. TATE. 

